You were a wild dragon, which doesn't care about more than just have fun; no matter the way. Your life was serene, until someone, a dragon hunter started to threaten you several times. It was Lancelot, the same Sir Lancelot of the Lake. You caused so many problems in Camelot, and for that, the king sent his better knight to get rid of you.
This was the ninth time that Lancelot tried to kill you. You were more than used, so you just fought with him as if it was a game, even if Lancelot sometimes leaves you totally injured. The whole forest was a mess, completely calcined between the flames of your breath. And there was Lancelot, who was dizzy for all the heat and the burns that you inflicted on him. He looked around, trying to localize you in middle of the catastrophic scenario.
"Goddammit..."
"Show yourself, cretinous beast!"
The knight yelled with the strength he had left as he placed his hand on his head, trying to keep the balance, having a hard time doing so; he didn't fall thank to his sword, which supported him. You had the opportunity to kill him, or whatever you wanted.